[Bug optimization/12920] [tree-ssa] compiler fails to build gdb

["pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From pinskia at gcc dot gnu dot org  2003-12-05 19:50 -------
It was intentational removed:
        * builtins.c (fold_builtin): Use get_callee_fndecl.

        * attribs.c (decl_attributes): Rebuild the function pointer type after
        changing the target type.
        * tree.c (get_qualified_type): Also check that the attributes match.

        * c-typeck.c (build_array_ref): Also build ARRAY_REFs from
        INDIRECT_REFs of ARRAY_TYPE.

        * tree-ssa.c (tree_ssa_useless_type_conversion): Also strip
        conversions between pointer and reference types.

        * tree-dfa.c (get_stmt_operands): Just mark non-GIMPLE statements
        as unmodified.
        (find_referenced_vars): So we don't need to mark them here.

        * tree-inline.c (inline_data): Add retvar field.
        (declare_return_variable): Set it.
        (remap_decls): Use it.
        (expand_call_inline): Tweak.
cp/
        * typeck.c (build_array_ref): Also build ARRAY_REFs from
        INDIRECT_REFs of ARRAY_TYPE.

        * semantics.c (finish_id_expression): Unshare aliases.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12920